18646733

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 23116032

約数和(自身を除く): 4469299

約数列:

[1, 7, 19, 47, 133, 157, 329, 361, 893, 1099, 2527, 2983, 6251, 7379, 16967, 20881, 51653, 56677, 118769, 140201, 396739, 981407, 2663819, 18646733]

約数ペア:

[(1, 18646733), (7, 2663819), (19, 981407), (47, 396739), (133, 140201), (157, 118769), (329, 56677), (361, 51653), (893, 20881), (1099, 16967), (2527, 7379), (2983, 6251)]